Buckle.



J.- 0. ROSENKRANZ.

BUCKLE.

APPLICATION FILED 00m, 1912.

1,055,800, Patented Mar. 11, 1913.

WITNESSES INVENTOI? By w ATTORNEYS JOHN C. ROSENKRANZ, OF NEW YORK, N.Y.

BUCKLE.

Specification of Letters Patent.

Patented Mar. 11, 1913.

Application filed October 7, 1912. Serial No. 724,356.

To all whom it may concern:

Be it known that 1, JOHN C. RosEN- KRANZ, a citizen of the UnitedStates, and a resident of the city of New York, borough of Brooklyn, inthe county of Kings and State of New York, have invented a new andImproved Buckle, of which the following is a full, clear, and exactdescription.

The invention relates to one-piece buckles such as are used on clothtightening bands or straps employed for tightening trousers, vests andother garments and also used as encircling bands and belts.

The object of the invention is to provide a new and improved one-piecebuckle arranged to permit easy adjustment of the band or strap and tohold the strap securely in adjusted position without the use of tongues,teeth or similar holding or gripping devices.

In order to accomplish the desired result the buckle is made of a singlepiece of metal and comprises side bars, end bars integrally connectingthe ends of the side bars with each other, and a middle cross barintegrally connecting the side bars with each other at the middlethereof, the inner edges of the side bars converging from the middle barto the end bars.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of the buckle as attached to one end of astrap, part of the latter being broken out; Fig. 2 is a similar view ofthe buckle as applied for holding the other end of the strap in theadjusted position; and Fig. 3 is a sectional plan view of the buckle.

The buckle is formed from a single piece of metal, preferably sheetmetal, stamped to provide side bars A, A, end bars B, B integrallyconnecting the ends of the side bars A, A with each other, and ametalcross bar C integrally connecting the side bars A and A with each otherat the middle thereof. The inner edges A A of the side bars A and Aconverge from the middle cross bar C to the end bars B, B, as plainlyindicated in Fig. 1, so that the openings formed in the opposite sidesof the middle cross bar C become gradually annular from the mid dlecross bar C to the end bars B, B. One end D of the cloth D is secured tothe cross bar G and the other end D of the strap D is made somewhatwider than the buckle openings at their widest parts, that is, adjacentthe middle cross bar G, to cause the end D of the strap to strongly bindat the inner edges A A at the time the end D is engaged with the buckle,that is, is passed under the end bar B over the middle cross bar C andthe attached end D of the strap D, and then under the end bar B, asplainly indicated in Fig. 2.

It will be noticed by reference to Fig. 2, that, owing to the convergingedges A A the wider end D of the strap D is caused to wrinkle or doubleup from the middle bar C to the end bars B, B, thereby causing a.

firm binding of the end D of the strap, with a view to hold the sameagainst movement on pulls on the strap in the directions of the arrowsindicated in Fig. 2. In order to increase the tightening of the strapend D the side bars A and A are arched, as indicated in Fig. 3, so thatthe cross bar C is somewhat higher than the end bars B, B andconsequently the portion of the end D is more pronouncedly curved orarched between the end bars B and B, thus causing the end D to bearfirmly on the end D attached to the middle cross bar C.

It is understood that the terminal of the end D overlies the portion ofthe end D from the middle cross bar C to a distance beyond the end bar Band consequently the frictional contact'between the said ends D and Dtends to hold the end D fro-1n disengaging the buckle on the exertion ofpulls in the direction of the arrows previously mentioned.

In practice, the sidebars A and A and the end bars B and B arepreferably provided along their outer margins with depending flanges, asplainly indicated in Fig. 3, to render the buckle exceedingly strong anddurable, and also to provide an gular edges bearing on the end D of thestrap at the time the end D is engaged with the buckle, as shown in Fig.2. The end D can be readily drawn forward through the buckle by the userfor tightening the strap to the desired degree, but as soon as thewearer releases the strap and pulls are exerted on the ends D and D inopposite directions, the end I.) is held by the buckle against movementin the direction of the pull exerted on the end D as indicated by thecorresponding arrow at the end D The buckle shown and described is. verysimple and durable in construction and cheap to manufacture, and it canbe readily attached to one end of a strap and used in the manner aboveset forth.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

A buckle made from a single piece of metal and comprising side bars, endbars integrally connecting the ends of the side bars With each other,and a middle cross bar integrally connecting the side bars with eachother at the middle thereof the inner edges of the side bars convergingfrom the middle bar to the end bars, and the said side bars and end barsbeing provided along their margins with integral rearwardly extendingflanges.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN C. ROSENKRANZ.

Vitnesses FREDERICK GABRIEL, GEORGE F. GABRIEL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, 1). C.

